Roof connection



July 20 1926. 1,593,550 C. L.- HOLT.

ROOF COSNECTION Filed March 13, 1923 l nj'emw for: ('FzawZeeLJfoZv.

Patented July 20, 1926.

PATENT OFFICE.

CHARLES L. HOLT, or LAwaEncE, MASSACHUSETTS, ASSIGNOR TO atom noon con- NECTION comramr, or LAWRENCE, MASSACHUSETTS,A conronarxon' or massm OHUSET'IS,

ROOF CONNECTION.

Application filed Mann e, 1923. Serial no. 624,87.

This invention relates to roof connections for drain and vent pipes of the general type .shown in my prior Patent No. 1,252,573, and aims to provide an improved connection of that type particularly adapted for use in buildings with thick concrete roofs or the like,and having, among others, the advantages hereinafter pointed out.

In the drawings of one embodiment of my invention selected for illustration and description,

Fig. 1 is a side elevation, certain parts being broken away; and

Fig. 2, a vertical section on the line 2-2, Fi 1.

fieferring to the drawings, Fig. 2, 1 represents a portion of the usual concrete roof which is much thicker than the common -;which acts'to prevent the fitting from dropwooden roof. In construction of this kind there is usually little or no opportunity to work at the installation of the roof 'connec-- ping through the opening, and also from downward movement relative to the roof. On its ,side the fitting'2 is provided with a plurality of fins or vanes 5 to each of which herein is pivoted a-loc'king dog 6 in such manner and of such form that it normally tends'to swing outwardly. The fitting may be set while the concrete roof is being constructed, and the dogs buried in the cement,

or, if the roof has been finished, the upright grooves or openings may be cut into the cement if necessary to receive the fins and alsothe dogs'which swing outwardly from the fins as the fitting is lowered into position, and the grooves-then filled up, securely anchorin the fitting in; position, particularly against relative upward movement.

I In many localities the use of a slip or expansion joint in the drain 'or vent pipe below the roof is not-permitted, and to meet.

such contingency I use the following construction.

Vithin thefitting 2 is a preferably copper expansion sleeve 7 which rests at its upper end against a-gland ring'8 carried by the offset part of the fitting 2 and at its lower end the sleeve rests against a 'flange- 9 on the inner face and near the lower end of-the The sleeve 7 in turn, has on its lower end and 1ts inner face, a flange 11 within which is a pipe section 12 connected with the leader,

not shown, from the building, and between it and the sleeve 7 is placed preferably oakuin 13, and above it lead 14 .or other suitablejoint making material. The inner face of the sleeve 7 has on it a plurality of grooves 7 a into which the lead 14 runs and thus additional locking means is provided between the sleeve 7 and pipe section 12. The sleeve 7 therefore, is rigidlylocked to the pipe 1.2

and will move longitudinally with it against the packing 10 as the pipe 12. expands or contracts. It also of course permits relative movement of the roof and fitting 2 should that be necessary. The ofi'set portionof the gland ring 8 carrying the yoke by means of which the strainer is locked securely down and which will be referred to more particularly later, permits free movement -within the gland ring and vertically of any of the packing, sleeve or pipe members when such movement is caused by settling of the roof or other movement of any of the structural members. Thisis one distinct advantage of .this construction of gland and strainer locking yoke memberinaddition to the advantages arising therefrom in connection with the installation of-the members from above the roof. There is preferably a slight clearance between the flange 11 and the pipe 12 so that some adjustment of the member may be made if necessary on account of non-alignment of'the parts for any cause.

It is customary to'use a flashing member of copper or other suitable material tosecure a water tight joint between the roof fitting and the roof itself. The flashing member is embedded in or laid upon aplurality of layers of roofing felt 1. and tar 1 or pitch, and commonly covered with gravel. Difliculty has been encountered. however, in securing a water tight joint between the flashing and the roof fitting 2.

To overcome this difiiculty, therefore, the

gland ring 8 is provided with a horizontal" flange 15 which rests upon the offset portion 3 of the fitting 2 and ispreferably secured thereto by screws 16 of brass or other nonrusting material for convenient assembling of the parts from above the roof. This gland ring also has an offset upstanding flange 17 to which is secured, as y screws 18, a curved brass yoke 19 which serves to secure in position a strainer 20 to be referred to presently. The flange 17 and adjacent wall of the fitting 2 therefore have a vacant space or channel between them which I use as follows.

The thin flashing 21 of copper or other proper material is laid directly upon the flange 4 of the roof fitting with a central opening of the size of the diameter of the opening in the fitting inside the flange 17. This flashing in turn is held firmly in position upon the top of the fitting by a gravel stop ring 22 with an inner serrated rib 23 which ring acts to catch any gravel likely to be washed into the drain pipe by the rain, the latter escaping to the pipe 12 through the vertically slitted or serrated rib 23, of the gravel stop. To lock the flashing tightly between the gravel stop 22 and the flange 4.- of the fitting, the gravel stop has on its lower face a rib 24 which presses and offsets the copper flashing firmly down into the space between the roof fitting 2 and the upright flange 17 of the gland ring, thus ensuring a perfectly tight joint. The strainer. 20 is securely locked down upon the gravel stop 22 and the latter in turn down upon the flash ing 21 and the flange 4, forcing the rib 24,- on the member 22 and the flashing downward into the fitting 2, by a nut 26 on a bolt 27 extended upwardly from the top of the yoke 19.

It will be seen that by the described construction the flashing leaves no opportunity for any water that may work its way in beneath the gravel ring to pass down on the inside wall of the fitting 2 into the room ;below, any leakage of that kind being retained by the flashing above it. While the sleeve 13 is of machined metal and provided with a substantially perfectly smooth inner and outer face so that the joint between it and the pipe section 12 may be water tight, the fitting 2 is of cast metal and occasionally the inner wall thereof will be more or less irregular and ofier an opportunity, in spite of the packing 10, for water to pass down the inner face thereof into the room below,

provided it leaks in beneath the gravel stop; hence the advantage of the flashing-being forced down into the channel between the upstanding rib 17 and the fitting wall by the rib 24.

It will be noted that the roof fitting and I gland in this construction substantiallyv fill the roof opening and leave no space or pocket between the fitting and the strainer to collect dbris of any kind, such as leaves from the trees or pieces of paper that are always in such cases forced by the wind or rain into such pockets and fill them and seriously diminish the capacity of the straincraftsmen in installing roof connections of this type, the plumber installs the leader pipe upwardly through the building as it progresses, and finally temporarily installs the upper pipe section 12 and flashing 21 with the appropriate fitting for securing it to the pipe section whether the roofer is ready to cooperate with him or not. Sometimes this is done because, the roof being closed in, the contractor desires to obtain all possible temporary protection from rain or snow. lVhen the roofer comes, he completes the roof, making the best joint he can between the several layers of felt or paper, the flashing and other members, working at adisadvantage, however, in placing the felt or paper properly beneath the flashing member. Thereafter the roof is completed by the addition thereto of a layer of tar or pitch and thereupon a layer of gravel.

If the roofer starts the joint between the flashing and its fitting at any one point, the joint will leak and damage will be done. By the use of my improved construction, if the pipe section 12, sleeve 7 and fitting 2 with the gland ring 8 are installed before the roofer is ready to proceed, the roofer is obliged only to butt the edges of the felt or paper closely up against the outer edge of the flange 4, install the flashing thereover and lock the same down firmly by means of the nut 26, bolt 27 and yoke 19,

and thereafter complete the roof with the layer or layers of pitch or tar and gravel and a tight joint is assured between the roo structure, the flashing and its several fittings.

' My invention is not limited to the precise form of the various elements as illustrated and described herein.

Claims- 1. A roof connection having agravel stop membenthereover and a flashing offset by and between the gravel stop and roof fitting, a strainer, and means on the fitting and without the inner plane of the fitting for locking the strainer down upon the gravel stop and flashing.

2. A roof connection having an oifset and depressing the latter over the lateral gland ring flange, and means on the gland ring to lock the gravel stop member down upon the flashing. I

4. A roof connection com rising a roof fitting, a shoulder on the ttingwall, a gland ring with a lateral flan e seated on said shoulder, an upstanding'ilange on the gland ring separated from the fitting wall,

,a flashing over the fitting and upstanding flange, and a gravel stop ring thereover with a depending rib forcing the flashing between the fitting and upstanding flange, and means on the upstanding flange of the gland ring to lock the gravel stop ring down upon the flashing.

5. A roof connection com rising a roof fitting, a shoulder on the tting wall, a gland ring with a lateral flange seated on said shoulder, an upstanding flange on the gland ring, a flashing over the fitting and; upstanding flange, algravel stop ring thereover with a depending rib forcing the flashfitting, a shoulder on the gland ring with a lateral flan e-seated on ing between the fitting and upstanding flange, and a strainer on the gravel ring with a yoke secured to the gland ring flange and strainer to lock the latter down upon the gravel ring and flashingu 1 6. A roof connection com rising a roof tting wall, a

said shoulder, an upstanding ange on the gland ring separated from the fitting wall cooperating with thefitting to form a channel, a flashing over the fitting and upstanding flange, and a gravel stop ring thereover with a dependingrib' forcing the flashing between the fitting and upstanding flange, and means on the upstanding flange of the gland ring to lock the gravel stop member down upon the flashing.

,7. A roof connection comprising a roof fitting and havingan oflfset strainer yoke seat therein, a gravel stop ring thereover, a flashing oflset between the gravel ring and fitting, a strainer in the gravel stop, a yoke locked to the ofi'setyoke seat and to the strainerthus securing the strainer to' the gravel ring, a sleeve in the fitting having a slip joint connection therewith, and a plpe section in the sleeve movable past the strainer yoke.

8. A roof connection comprising a roof fitting and having an oflsetstrainer yoke.

seat therein, a gravel stop ring thereover, a flaslnng offset between the gravel rlng and locked to the yoke seat and to the strainer thus securing the strainer to the gravel ring,

fitting, astrainer in the gravel stop,-a. yoke and a sleeve in the fitting having a'slip joint connection therewith, a pipe section in the sleeve movable vertically past the yoke and yoke seat, and locking means on the fitting movable relative thereto to permit the latter to be lowered into the roof opening, the locking means constructed and arranged to engage automatically the sides of the wall of the opening to lock the fitting against movement therein.

9. A roof connection for drain pipes comprising a roof fitting with a passageway therethrough and a slidable sleeve therein for'connecting the fitting with the pipe section," a supporting flange laterally projected from the fitting to support the fitting in a roof, opening, an offset portion on said fitting wall, a gland .ring therein, a flashing member overlying the same and secured to the roof, a gravel stop member overlying the flashing member and forcing'the same into the offset fitting portion, a pair of dogs on the fitting automatically movable to permit the fitting to be lowered into the roof opening and to engage the sides of said opening to prevent upward movement of the fitting, a strainer on the gravel stop, and a strainer yoke connected to the ring without the inner ring wall to permit movement of the sleeve past the yoke end, to lock on i the strainer down upon the gravel stop and flashing and between the ring and the fitting flange.

10. A roof connection comprising a roof 'p ipe section, a roof fitting, a flanged gland ring secured to the fitting with the top faces of the flange and fitting in a plurality of planes, a flashing member thereon, a

gravel stop ring overlying the flashing and. gland ring flange, a strainer on the gravel ring, and means on the gland ring without the plane of the pipe section connecting the strainer and gravel ring to ull the strainer tightly down upon the flashing and to force the latter downupon the top faces of the fitting and gland ring flange in different planes. Y i i 11. A roofconnection comprising a roof pipe section, a roof fitting thereon and the fitting having an offset portion-on its-wall, a flanged gland ring on the fitting roviding therewith a grooved fitting, a ashing thereover, a gravel stop ring overlying the to press the flaslnng down between the fitting and ring."

12. A roof connection comprising a pipe section 12, a roof fitting 2 about saidpipe section and having a movable connection therewith, the dog 6 for locking the fitting to the roof to prevent movement relative thereto, a gland ring 8 forming with the fitting a curved groove, a flashing member 21 over the fitting and gland ring, a gravel stop ring 22 over the flashing with a rib 24 seated on the flashing and in the groove, a strainer 20, and means 19 on the strainer to engage the gland ring without the plane of the' pipe section 12 to cause the former to drive the flashing down into the groove and upon the upper edge of the gland ring, leaving no opening between the gravel ring 22 and the fitting 2 for the entrance of water.

In testimony whereof, I have signed my name to this specification.

CHARLES L. HOLT. 

